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MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. Install Kit, DIY448HPC09090918-16

SKU DIY448HPC09090918-16
by MRCOOL
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Description

MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. Install Kit (DIY448HPC09090918-16)

Step into the future of HVAC with the MRCOOL DIY Mini Split system — a powerful, versatile, and easy-to-install solution designed for business owners, contractors, and professionals who demand efficiency without compromise. Picture delivering exceptional comfort to multiple rooms or zones with one sleek, high-performance system that you can install yourself, saving time and labor costs while impressing clients with clean, professional results.

At the core of this system is a 48,000 BTU multi-zone condenser capable of managing up to five zones, paired perfectly with four ceiling cassette air handlers: three 9,000 BTU units and one larger 18,000 BTU unit. Whether you’re outfitting a commercial space, a multi-room home, or a workshop, these air handlers cover areas ranging from 375 to 750 square feet each — ensuring tailored comfort where it’s needed most. Their low-profile design fits discreetly into ceilings, keeping interiors clean and unobtrusive.

What truly sets this system apart is the patented pre-charged Quick Connect line sets. These 16-foot copper lines arrive pre-filled with the exact amount of R-410A refrigerant, meaning you can complete the installation without specialized HVAC tools or a certified technician. Imagine the freedom to install a professional-grade ductless mini split system yourself or with your team, cutting down on project time and overhead.

Energy efficiency shines here with a 20.5 SEER rating, helping your customers save on energy bills while maintaining powerful performance. The system reliably heats even when outdoor temperatures drop as low as 5°F, making it a dependable choice year-round. Plus, the condenser’s Gold Fin® coating protects against corrosion, ensuring longevity and durability in any environment.

Maintenance is simple and client-friendly. The air handlers feature an innovative Elevation function that lowers the filter panel at the push of a button via remote or smart controller, making routine upkeep quick and hassle-free — a feature your customers will appreciate and thank you for.

Backed by a limited lifetime compressor warranty (when registered), along with 7 years on the compressor and 5 years on parts, this system offers peace of mind that lasts.


Why Choose This System?
  • Powerful 48,000 BTU multi-zone condenser supports up to 5 zones
  • Four ceiling cassette air handlers (three 9K BTU, one 18K BTU) for flexible, zone-specific comfort
  • Pre-charged 16 ft. Quick Connect line sets simplify installation and eliminate the need for specialized tools
  • Impressive 20.5 SEER energy efficiency rating reduces operating costs
  • Reliable heating performance down to 5°F outdoor temperature
  • Low-profile ceiling design fits easily between joists, including engineered I-joists
  • Easy air filter access with remote-controlled Elevation function
  • Durable Gold Fin® condenser coating for corrosion resistance
  • Lifetime limited compressor warranty plus 7 years compressor and 5 years parts coverage

With the MRCOOL DIY Mini Split, you’re not just selling equipment — you’re delivering a turnkey comfort solution that’s efficient, elegant, and designed to maximize your business potential. Install faster, save money, and provide your customers with the reliable, high-quality climate control they deserve.




Package Includes

Condenser

  • Energy Efficient. This 5 Zone condenser, when paired with select MRCOOL air handlers, is capable of producing an impressive 20.5 SEER efficiency rating.
  • Works In All Environments. The capability to continue to deliver heating performance when temperatures reach 5°F
  • Lifetime Warranty. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. Simply register into the MRCOOL Care Program to get the lifetime warranty!

Air Handler, 9K BTU, Quantity 3

  • Large Coverage Area. Handler covers an area up to 375 sq. ft.
  • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
  • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
  • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
  • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

    Air Handler, 18K BTU, Quantity 1

    • Large Coverage Area. Handler covers an area up to 750 sq. ft.
    • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
    • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
    • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
    • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

    Line Set 16 ft., Quantity 4

    • Pre-Charged. These copper line sets come pre-charged with the precise amount of R-410A refrigerant.
    • DIY & Save Money. This means the installation process can be performed without retaining the services of a certified technician - thus saving you money!

          PRODUCT SPECIFICATIONS:
          Condenser

          Product Dimensions 37.48"W x 16.34"D x 52.48"H
          Cooling Capacity 48,000 BTU
          Heating Capacity 48,000 BTU
          Zone Capacity 5
          Cool Mode - Outdoor Operating Temperature Range 5F ~ 122F
          Heat Mode - Outdoor Operating Temperature Range 5F ~ 75.2F
          SEER 20.5
          EER 11
          Voltage Requires a minimum of 208V-230V/60HZ/40-60A (please check your home meets this electrical requirement prior to purchase)
          Registered Warranty
          7 Years Replacement on Compressor, 5 Years Parts


          Air Handler 9K BTU

          Product Dimensions 50.31"W x 13.19"D x 8.98"H
          Mount Type Ceiling Cassette
          Cooling Capacity 9,000 BTU
          Heating Capacity 9,000 BTU
          Registered Warranty 5 Years Parts
          Modes Auto - Auto selects from Cool, Heat or Fan-Only
          Dry - dehumidify
          Cool
          Heat
          Fan Only
          Quiet
          Sleep


          Air Handler 18K BTU

          Product Dimensions 50.31"W x 13.19"D x 8.98"H
          Mount Type Ceiling Cassette
          Cooling Capacity 17,000 BTU
          Heating Capacity 19,000 BTU
          Registered Warranty 5 Years Parts
          Modes Auto - Auto selects from Cool, Heat or Fan-Only
          Dry - dehumidify
          Cool
          Heat
          Fan Only
          Quiet
          Sleep


          Line Set

          Length 16 Feet
          Liquid Line Size 1/4"
          Suction Line Size 1/2"
          Installation Manual
          Product Brochure
          Performance Specifications
          Warranty
          Energy Guide
          AHRI Certificate

          Shipping and Return

          We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

          For more Shipping information visit here

          We offer a 2 Year (730 Day) return for our products. 

          For more Return information visit here

          COVERAGE AREA

          HIVE WARRANTY

          HVAC Hive Warranty Information:

          HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

          Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

          Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

          Warranty Coverage Includes:

          • Parts replacement for manufacturing defects
          • Labor costs for covered repairs
          • System malfunctions and component failures

          Warranty Details:

          • Residential, light commercial, and full commercial warranties vary based on your usage
          • Specific warranty terms and coverage periods are listed on each product page
          • Both parts and labor are covered under our extended warranty program

          Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

          Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

          Contact US
          Request an Installer

          Product Overview

          • Zone / ROOM:

            Zone / ROOM: 4 Zone

          • Air Handler BTU:

            Air Handler BTU: 9k + 9k + 9k + 18k

          • Condenser BTU:

            Condenser BTU: 48k

          • Outdoor Operating Temp (Cool/ heat):

            Outdoor Operating Temp (Cool/ heat): Heating -13°F to 75.2°F & Cooling 5°F to 122°F

          • Warranty

            Warranty 7-year compressor & 5-year parts warranty

          Description

          MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. Install Kit (DIY448HPC09090918-16)

          Step into the future of HVAC with the MRCOOL DIY Mini Split system — a powerful, versatile, and easy-to-install solution designed for business owners, contractors, and professionals who demand efficiency without compromise. Picture delivering exceptional comfort to multiple rooms or zones with one sleek, high-performance system that you can install yourself, saving time and labor costs while impressing clients with clean, professional results.

          At the core of this system is a 48,000 BTU multi-zone condenser capable of managing up to five zones, paired perfectly with four ceiling cassette air handlers: three 9,000 BTU units and one larger 18,000 BTU unit. Whether you’re outfitting a commercial space, a multi-room home, or a workshop, these air handlers cover areas ranging from 375 to 750 square feet each — ensuring tailored comfort where it’s needed most. Their low-profile design fits discreetly into ceilings, keeping interiors clean and unobtrusive.

          What truly sets this system apart is the patented pre-charged Quick Connect line sets. These 16-foot copper lines arrive pre-filled with the exact amount of R-410A refrigerant, meaning you can complete the installation without specialized HVAC tools or a certified technician. Imagine the freedom to install a professional-grade ductless mini split system yourself or with your team, cutting down on project time and overhead.

          Energy efficiency shines here with a 20.5 SEER rating, helping your customers save on energy bills while maintaining powerful performance. The system reliably heats even when outdoor temperatures drop as low as 5°F, making it a dependable choice year-round. Plus, the condenser’s Gold Fin® coating protects against corrosion, ensuring longevity and durability in any environment.

          Maintenance is simple and client-friendly. The air handlers feature an innovative Elevation function that lowers the filter panel at the push of a button via remote or smart controller, making routine upkeep quick and hassle-free — a feature your customers will appreciate and thank you for.

          Backed by a limited lifetime compressor warranty (when registered), along with 7 years on the compressor and 5 years on parts, this system offers peace of mind that lasts.


          Why Choose This System?
          • Powerful 48,000 BTU multi-zone condenser supports up to 5 zones
          • Four ceiling cassette air handlers (three 9K BTU, one 18K BTU) for flexible, zone-specific comfort
          • Pre-charged 16 ft. Quick Connect line sets simplify installation and eliminate the need for specialized tools
          • Impressive 20.5 SEER energy efficiency rating reduces operating costs
          • Reliable heating performance down to 5°F outdoor temperature
          • Low-profile ceiling design fits easily between joists, including engineered I-joists
          • Easy air filter access with remote-controlled Elevation function
          • Durable Gold Fin® condenser coating for corrosion resistance
          • Lifetime limited compressor warranty plus 7 years compressor and 5 years parts coverage

          With the MRCOOL DIY Mini Split, you’re not just selling equipment — you’re delivering a turnkey comfort solution that’s efficient, elegant, and designed to maximize your business potential. Install faster, save money, and provide your customers with the reliable, high-quality climate control they deserve.




          Package Includes

          Condenser

          • Energy Efficient. This 5 Zone condenser, when paired with select MRCOOL air handlers, is capable of producing an impressive 20.5 SEER efficiency rating.
          • Works In All Environments. The capability to continue to deliver heating performance when temperatures reach 5°F
          • Lifetime Warranty. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. Simply register into the MRCOOL Care Program to get the lifetime warranty!

          Air Handler, 9K BTU, Quantity 3

          • Large Coverage Area. Handler covers an area up to 375 sq. ft.
          • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
          • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
          • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
          • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

            Air Handler, 18K BTU, Quantity 1

            • Large Coverage Area. Handler covers an area up to 750 sq. ft.
            • Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
            • Out of Sight Design. This unit has low profile installation for out of sight heating & cooling.
            • Worry-Free Installation. Easily install between all types of joists on 16" center - including pre-manufactured I-joists
            • Easy Air Filter Access. By activating the Elevation function on the remote controller (or smart controller), the filter panel will lower for easy air filter maintenance.

            Line Set 16 ft., Quantity 4

            • Pre-Charged. These copper line sets come pre-charged with the precise amount of R-410A refrigerant.
            • DIY & Save Money. This means the installation process can be performed without retaining the services of a certified technician - thus saving you money!

                  PRODUCT SPECIFICATIONS:
                  Condenser

                  Product Dimensions 37.48"W x 16.34"D x 52.48"H
                  Cooling Capacity 48,000 BTU
                  Heating Capacity 48,000 BTU
                  Zone Capacity 5
                  Cool Mode - Outdoor Operating Temperature Range 5F ~ 122F
                  Heat Mode - Outdoor Operating Temperature Range 5F ~ 75.2F
                  SEER 20.5
                  EER 11
                  Voltage Requires a minimum of 208V-230V/60HZ/40-60A (please check your home meets this electrical requirement prior to purchase)
                  Registered Warranty
                  7 Years Replacement on Compressor, 5 Years Parts


                  Air Handler 9K BTU

                  Product Dimensions 50.31"W x 13.19"D x 8.98"H
                  Mount Type Ceiling Cassette
                  Cooling Capacity 9,000 BTU
                  Heating Capacity 9,000 BTU
                  Registered Warranty 5 Years Parts
                  Modes Auto - Auto selects from Cool, Heat or Fan-Only
                  Dry - dehumidify
                  Cool
                  Heat
                  Fan Only
                  Quiet
                  Sleep


                  Air Handler 18K BTU

                  Product Dimensions 50.31"W x 13.19"D x 8.98"H
                  Mount Type Ceiling Cassette
                  Cooling Capacity 17,000 BTU
                  Heating Capacity 19,000 BTU
                  Registered Warranty 5 Years Parts
                  Modes Auto - Auto selects from Cool, Heat or Fan-Only
                  Dry - dehumidify
                  Cool
                  Heat
                  Fan Only
                  Quiet
                  Sleep


                  Line Set

                  Length 16 Feet
                  Liquid Line Size 1/4"
                  Suction Line Size 1/2"
                  Installation Manual
                  Product Brochure
                  Performance Specifications
                  Warranty
                  Energy Guide
                  AHRI Certificate

                  Shipping and Return

                  We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

                  For more Shipping information visit here

                  We offer a 2 Year (730 Day) return for our products. 

                  For more Return information visit here

                  COVERAGE AREA

                  HIVE WARRANTY

                  HVAC Hive Warranty Information:

                  HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

                  Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

                  Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

                  Warranty Coverage Includes:

                  • Parts replacement for manufacturing defects
                  • Labor costs for covered repairs
                  • System malfunctions and component failures

                  Warranty Details:

                  • Residential, light commercial, and full commercial warranties vary based on your usage
                  • Specific warranty terms and coverage periods are listed on each product page
                  • Both parts and labor are covered under our extended warranty program

                  Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

                  Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

                  Contact US

                  Commercial HVAC PROS!

                  Unlock Installer Benefits Now:

                  • ✓ Exclusive BULK Pricing
                  • ✓ Limited Time Deals
                  • ✓ Unmatched Service & Support
                  • ✓ Technical support
                  • ✓ Extended Warranty & Maintenance
                  "Their technical expertise in commercial HVAC systems is outstanding. From equipment selection to installation support, they provided everything we needed. The bulk pricing saved us thousands on our multi-building project, and their 24/7 technical support kept us running smoothly."
                  - Marcus R., HVAC Project Manager, 06/24

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                  • ✓ Pre-Vetted, Licensed & Insured Installers
                  • ✓ 2-3 Local Options in Your Area
                  • ✓ Specialists in Your Equipment Type
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                  • ✓ Fast Response - Within 24 Hours

                  How it works:

                  1. Fill out the form below with your project details
                  2. We'll match you with 2-3 qualified installers in your area
                  3. Installers contact you directly with quotes and availability
                  4. You choose the best fit for your project

                  "I bought a heat pump online but wasn't sure about installation. HVAC Hive connected me with three local contractors within hours. I chose one based on reviews and pricing - he installed it perfectly the next week. Made the whole process so much easier!"
                  - Jennifer M., Homeowner, Phoenix AZ

                  ✓ No obligation quotes | ✓ All installers background checked | ✓ Free service - you only pay the installer

                  We'll connect you with installers within 48 hours during business days

                  Frequently Asked Questions about MRCOOL DIY Mini Split - 45,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. Install Kit, DIY448HPC09090918-16

                  Most Frequently Asked Questions

                  Yes, Mr. Cool DIY mini splits are generally well-regarded for their easy self-installation, reliable performance, and energy efficiency, making them a popular choice for homeowners seeking a do-it-yourself solution.
                  A MRCOOL mini split typically lasts 10 to 20 years with proper installation and regular maintenance.
                  The cost to install a MRCOOL mini split system typically ranges from $3,000 to $10,000, depending on the size, number of zones, and installation complexity, with DIY options potentially saving $500 to $2,000 in labor costs

                  Other Questions

                  Cons of DIY mini splits include limited system size and zoning options compared to professional models, potential challenges with proper placement and installation, risk of voiding warranties if not installed correctly, and less access to advanced features or customization available in professionally installed systems.
                  Yes, in most areas, you still need a permit to install a DIY mini split system to ensure the installation meets local building codes and safety regulations—even if you’re doing the installation yourself. It’s best to check with your local building department for specific requirements.

                  Reviews

                  Express Free Shipping

                  Process orders within 1-2 days

                  Stress Free Returns

                  Get Covered for (730 days) Returns

                  Premum Quality

                  Top Tier Products, Even Better Customer Care

                  5 Year Warranty

                  We Believe In Our Products & Our Team